title: Synchronous ileocecal neuroendocrine tumor and carotid chemodectoma: diagnosis by 111In pentetreotide SPECT/CT.
abstract: We report a case of carotid chemodectoma diagnosed by In pentetreotide SPECT/CT. A 72-year-old woman with an ileocecal neuroendocrine tumor underwent whole-body In pentetreotide scintigraphy for exclusion of distant metastases. Planar scintigraphy demonstrated marked tracer uptake in the ileocecal region and intense focal tracer accumulation within the neck. SPECT/CT demonstrated a space-occupying lesion at the carotid bifurcation. Histopathological evaluation revealed carotid chemodectoma. SPECT/CT is a valuable tool for the evaluation and precise anatomical localization of tracer uptake. In addition, other benign or malignant pathologies accumulating In pentetreotide may mimic neuroendocrine tumor metastases and should be considered particularly in unusual localizations.
authors.affiliation: From the *Department of Nuclear Medicine, †Institute of Pathology, and ‡Department of Diagnostic and Interventional Radiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Wisotzki
authors.forename: Frank
authors.initials: F
authors.lastname: Jacobsen
authors.forename: Johannes
authors.initials: J
authors.lastname: Salamon
authors.forename: Thorsten
authors.initials: T
authors.lastname: Derlin
mesh_terms: D000368:Aged; D002345:Carotid Body Tumor / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007080:Ileocecal Valve / Q000000981:diagnostic imaging* / Q000473:pathology; D064847:Multimodal Imaging; D018358:Neuroendocrine Tumors / Q000000981:diagnostic imaging*; D010236:Paraganglioma, Extra-Adrenal / Q000000981:diagnostic imaging*; D013004:Somatostatin / Q000031:analogs & derivatives*; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed
chemical_list: D013004:Somatostatin; C081788:pentetreotide